Housing, Turbine, Garrett BB / JB GTW3684R, T4 UNDIV .82 A/R, 3″ V-BAND EXIT

This Garrett turbine housing is purpose-built for the GTW3684R platform, giving builders running ball bearing or journal bearing versions of this turbo a direct-fit, high-flow exhaust housing solution. Designed for enthusiasts and shops chasing aggressive turbine response without sacrificing flow, this housing pairs a T4 undivided inlet with a V-band exit for clean, efficient turbo-to-downpipe integration. It’s the right call for builds that demand a housing engineered specifically around the GTW3684R’s flow characteristics.

Specifications

• Turbine Housing Configuration: T4 Undivided (Open Entry)
• A/R Ratio: .82
• Compatible Turbo: Garrett GTW3684R (Ball Bearing or Journal Bearing)
• Exit Flange: 3″ GT V-Band
• Exit Location: V-Band Outlet (Down-Pipe Side)
• Product Code: CLC-CLA-052

Performance & Application

Engineered specifically for the GTW3684R turbo, this T4 undivided turbine housing is built for high-flow applications where aggressive turbine responsiveness is the priority. The open entry design and .82 A/R ratio work together to deliver strong exhaust-side flow characteristics suited to serious performance builds. Whether paired with a ball bearing or journal bearing version of the GTW3684R, this housing is matched to maximize the turbo’s flow potential on the exhaust side.

Compatibility & Fitment

• Garrett GTW3684R Ball Bearing turbo
• Garrett GTW3684R Journal Bearing turbo

What’s Included

• 3″ GT V-Band Exit Flange
• V-Band Clamp Set

Frequently Asked Questions

What is the A/R ratio of this turbine housing?

This turbine housing is built with a .82 A/R ratio.

Does this housing work with both ball bearing and journal bearing GTW3684R turbos?

Yes, this T4 undivided turbine housing is designed for the Garrett GTW3684R in both ball bearing and journal bearing configurations.

What type of exit flange does this housing use?

It features a 3″ GT V-Band exit flange located on the down-pipe side, with a V-band clamp set included.

Is this an open or divided turbine housing?

This is a T4 open (undivided) turbine housing.

For GTW3684R builds demanding precise, high-flow turbine-side performance, this T4 undivided .82 A/R housing with 3″ V-band exit delivers the exact fitment and flow characteristics the platform was designed around.</p